/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.gds.algorithms.community;

import org.junit.jupiter.api.Test;
import org.neo4j.gds.api.properties.nodes.LongNodePropertyValues;

import static org.assertj.core.api.Assertions.assertThat;

class ConsecutiveLongNodePropertyValuesTest {

    @Test
    void shouldReturnConsecutiveIds() {
        LongNodePropertyValues nonConsecutiveIds = new LongNodePropertyValues() {
            @Override
            public long nodeCount() {
                return 10;
            }

            @Override
            public long longValue(long nodeId) {
                return nodeId % 3 * 10;
            }
        };

        var consecutiveIds = new ConsecutiveLongNodePropertyValues(nonConsecutiveIds);

        assertThat(consecutiveIds.nodeCount()).isEqualTo(nonConsecutiveIds.nodeCount());

        for (int i = 0; i < 10; i++) {
            assertThat(consecutiveIds.longValue(i)).isEqualTo(i % 3);
        }
    }
}
